225results about How to "Enhanced turbulence effect" patented technology

The invention provides an underground coal mine dust collecting device and belongs to the dust collecting device. One end of a pressure wind inlet of the dust collecting device is provided with a wind inlet, and the other end of the pressure wind inlet is provided with a first inner nozzle. The wind pressure inlet is inserted into a one-level ejector which is provided with a first dust suction inlet. The first dust suction inlet is located on a position of a first receiving room. The one-level ejector is provided with the first receiving room. A first mixing room is arranged at the front end of the first receiving room. A second inner nozzle is arranged on the end portion of the first mixing room. The end of the first mixing room is inserted into a two-level ejector provided with a second dust suction inlet, a water inlet, a dedusting agent inlet and a nozzle. The two-level ejector is provided with a second receiving room. A second mixing room is arranged at the front end of the second receiving room. The second dust suction inlet is arranged on the position of the second receiving room. The water inlet and the dedusting agent inlet are arranged on the position of the second mixing room. The nozzle is arranged at the front end of the second mixing room. The underground coal mine dust collecting device is simple in structure and high in dedusting efficiency, reduces water consumption of coal mine dust collection, eliminates a high-pressure water pump, and reduces cost.

The invention belongs to the technical field of power station boiler afterheat recycling energy-saving devices and relates to a plate type economizer. The plate type economizer comprises a corrugated plate heat exchange core (1), a heat exchanger housing (2), smoke inlet-outlet pipelines (3, 3') and water inlet-outlet water tanks (4, 4'), wherein the front side and the back side of the heat exchanger housing (2) are respectively connected with the smoke inlet-outlet pipelines (3, 3'); the left side and the right side of the heat exchanger housing (2) are respectively connected with the water inlet-outlet water tanks (4, 4'); and clapboards (19, 19') are arranged inside the water inlet-outlet water tanks (4, 4'). With the adoption of the plate type economizer, the problem that the flow differences of water and smoke are large is solved, the turbulence intensity of smoke flow is increased, and the heat transfer efficiency is improved; and a smoke flow channel has the function of self-cleaning dusts, so dust accumulation to block does not easily happen.

The present invention discloses a method for preparing a novel biological fluidized bed carrier by using waste coke powder and treating waste water. According to the method, active sludge is inoculated in a biological fluidized bed main body, a biological fluidized bed carrier is poured, membrane forming culture is performed, waste water enters a reflux groove through a water pump, concurrently partial effluent of the reflux groove refluxes to the reflux groove, an influent pump is adopted to pump the waste water in the reflux groove into the biological fluidized bed, and water quality of effluent on an upper effluent port of a precipitation tank is monitored, wherein standard discharge is performed if a concentration of effluent COD is less than 100 mg/L and an ammonia nitrogen concentration is less than 10 mg/L, if the standard is not met, the effluent enters the reflux groove through a three-way valve to be continuously treated. According to the carrier, a good turbulent flow effect is provided in the fluidized bed, efficiency is high, a sufficient specific surface area can be provided, membrane forming is easily achieved, no toxic and harm effect is generated, and the carrier is easily fluidized in water and does not easily run off. In addition, the carrier adopts waste coke powder as the raw material, such that material taking is easy, the material source is wide, price is low, and the waste coke powder is subjected to resource utilization so as to change waste into valuables.

The invention discloses a static air mixer. Return distribution air and combustion-supporting air are introduced by utilizing a Venturi structure, are completely mixed under the action of a Venturi effect, keep at a complete importing state constantly, and are matched with a spiral air mixing channel, so that air flows are continuously blended and mixed uniformly, and the effects on uniformly mixing, reducing the oxygen content and outputting are achieved. According to the static air mixer, the return distribution air and the combustion-supporting air are introduced by utilizing the Venturi structure, are completely mixed under the action of the Venturi effect, keep at the complete importing state constantly, and are matched with the spiral air mixing channel, so that the air flows are continuously blended and mixed uniformly, and the effects on uniformly mixing, reducing the oxygen content and outputting are achieved.

The present invention discloses a flat plate turbulence type dynamic membrane separation device. The device comprises an upper cover plate and a lower cover plate. Both ends of the upper cover plate are respectively provided with a liquid inlet and a concentrated liquid opening. The upper cover plate is provided with a zigzag groove, which forms a reciprocating baffling flow type flow channel. The head and the tail of the groove are respectively connected with the liquid inlet and the concentrated liquid opening. A plurality of turbulence components are arranged inside the groove. A filtrate outlet is arranged below the lower cover plate or on the side surface of the lower cover plate. A support plate is arranged above the lower cover plate. A membrane is arranged above the support plate.A screen is arranged above the membrane. The present invention further discloses a membrane separation method, wherein the flat plate turbulence type dynamic membrane separation device is combined with the coagulation process by the method. The flat plate turbulence type dynamic membrane separation device of the present invention has characteristics of simple structure, effective release of membrane pollution, flexible operation and control, easy maintenance and low energy consumption. With the membrane separation method of the present invention, the membrane pollution can be effectively released, and the effluent quality can be significantly improved, such that the effluent is applicable for the engineering application.

The invention relates to an internal circulation fluidized bioreactor used for the sewage treatment, a pool body thereof is internally provided with a fluidized aerobic reaction zone, a settlement collecting area and an anoxic reaction zone, the bottom of the pool body is provided with an aeration device, the top part of the settlement collecting area is provided with a yielding aqueduct, the anoxic reaction zone is internally led with a water inlet pipe, the top part of the anoxic reaction zone is provided with an exhaust pipe, and the bottom of the anoxic reaction zone is provided with a water distribution pipe which communicates with the anoxic reaction zone and the fluidized aerobic reaction zone. The fluidized aerobic reaction zone is internally provided with a vertical partition board which divides the reaction zone into two zones, gaps communicated with the two zones are arranged on the partition board at intervals, and the aeration device is positioned outside the partition board. Compared with the prior art, the pool body is divided into the anoxic reaction area, the fluidized aerobic reaction zone, and the settlement collecting area, a biological reaction, a mud-water separation, and a sludge return flow systems of the sewage are combined organically, the sewage purification effect is good, the partition board divides the position of the original aerobic zone into two positions, so as to cause the aeration range to be small, the oxygen utilization ratio to be improved, and the aeration effect to be greatly increased.

The invention provides an air purification comprehensive testing device for a tunnel or a subway. The device is composed of a mixing box, an electrostatic precipitation test section, a denitration test section, and a fan section, which are connected sequentially. The inlet of the mixing box is the inlet of a harmful gas, and the outlet of the fan section is the outlet of a clean gas. The electrostatic precipitation test section is internally provided with a vortex gate and an electrostatic precipitator, wherein the vortex gate is arranged near one side of the mixing box; the denitration test section is internally provided with splitting plates and an active carbon wall, wherein the active carbon wall is arranged in the middle of the denitration test section, and the splitting plates are arranged at the front and rear sides of the active carbon wall; and the fan section is equipped with a fan. According to the invention, deficiencies in the prior art are overcome; under the precondition of ensuring the speeds of flow, passing through the electrostatic precipitator and the active carbon wall, to be uniformly dispersed, the dedusting efficiency of the electrostatic precipitator and the denitration efficiency of active carbon are improved; particulate matters and nitrogen oxide in the harmful gas can be effectively removed; and the cleanness of the gas at the outlet is guaranteed. The device can be applied to practical engineering of air purification in the road tunnel or the subway.

The invention relates to a low-NOx direct current micro-oil pulverized coal burner. The burner comprises a burner body and a primary burning chamber arranged inside the burner body; an inlet of the burner body is provided with a pulverized coal concentrator; an oil burning chamber is obliquely inserted into the primary burning chamber from the burner body; the burner is characterized in that: an inlet of the primary burning chamber is provided with a grid-type airflow regulator. The grid-type airflow regulator is provided with a round tube; the round tube is alternately provided with a plurality of clapboards. The low-NOx direct current micro-oil pulverized coal burner has the following advantages that: as the grid-type airflow regulator is arranged, After the condensed pulverized coal passes through the grid-type airflow regulator, the pulverized coal is further thickened; at the same time, onflow effect is reinforced; micro-oil flame ejected from the oil burning chamber firstly ignites the pulverized coal in the burning chamber; as the onflow effect is strong and the pulverized coal in the burning chamber has high concentration, the burning chamber is in a reducing atmosphere during burning process and mass NOx generated from burning is deacidized, thereby reducing the emission of pollutants.

The invention discloses an energy-saving oil temperature control system of a machine tool. The energy-saving oil temperature control system comprises a water tank, a heat exchanger, a control processing center, a control valve, a heat accumulation and exchange device, a temperature sensor, a frequency conversion motor and a water pump, wherein the temperature sensor is used for acquiring temperature of oil in an oil tank and transmitting a temperature signal to the control processing center; the control center receives the temperature signal, analyzes and processes the temperature signal and sends a corresponding control signal to control the motor and the valve to work; the heat exchanger is arranged into the oil in the oil tank and used for exchanging heat between water inside and outside a pipe and the oil; and the heat accumulation and exchange device is used for storing heat exchanged from the oil and supplying heat for preheating or heating the oil. The energy-saving oil temperature control system can effectively control the oil temperature of the machine tool, so that the usability of hydraulic oil of the machine tool is improved; furthermore, the heat exchanged from the oil can be recycled and reused; and the energy-saving oil temperature control system has the characteristic of saving energy.

The invention discloses a rotary aeration sewage treatment aeration tank. The rotary aeration sewage treatment aeration tank comprises a tank body, a motor, a rotating shaft, a transverse shaft, a sliding sleeve, an aeration plate and an air blower; the top of the tank body is fixedly provided with a portal frame; the inner top surface of the portal frame is provided with a motor, and an output end of the motor is connected with the rotating shaft; the sliding sleeve is sleeved on the periphery of the rotating shaft, and the sliding sleeve is provided with stirring blades; the aeration plate is fixed on the bottom of the rotating shaft, the aeration plate is a hollow structure, and aeration heads are uniformly distributed on the top of the aeration plate; and the air blower is installed onthe left side of the portal frame, an air outlet of the air blower is connected with a wind pipe, and the wind pipe stretches into the tank body and is connected to the center of the bottom of the aeration plate. By arranging the rotary aeration plate, bubbles are uniformly distributed in the tank body, so that the sewage treatment efficiency is increased.

The invention relates to the technical field of chemical and pharmaceutical equipment, in particular to a continuous flow reactor. The continuous flow reactor comprises a shell, wherein a shell side inlet and a shell side outlet which are communicated with an inner cavity of the casing are arranged on the shell; each of the upper end and the lower end of the shell is connected with a tube plate and a communicating device, a reaction tube stack is arranged in the shell and comprises multiple reaction tubes, the upper end and the lower end of each reaction tube penetrate through and are fixedly connected on the tube plates, and all the reaction tubes are sequentially connected in series through the communicating devices. By comparison with a traditional reactor, the reaction process is greatly improved under the condition of the same volume, reactants have high reynolds numbers under the condition of a low flow speed, the turbulence effect is greatly improved, unintermittent mixing is performed during constant flowing reactions, states of reaction stages can be detected in real time, and mounting and assembly are simplified.

The invention relates to a heat radiating turbulence tube which is a long-strip tube with a flat pipeline. A vertical partition wall is arranged at the middle line of the flat pipeline, and the vertical partition wall is connected with an upper wall and a lower wall in the horizontal direction to divide the pipeline into two identical cavities; dispersed array type convex strips are arranged on the upper wall and the lower wall both; and the convex strips recess relative to the outer wall surfaces of the walls where the convex strips are arranged and protrude relative to the inner wall surfaces of the walls where the convex strips are arranged. By means of different dispersed array type convex strips on the front side and the back side of the upper tube wall and on the front side and the back side of the lower tube wall of the radiating tube, the radiating tube is novel in structure in the situation that the resistance and the reliability of a radiator are not affected. Furthermore, the radiating area of the radiating tube is enlarged, the good turbulence effect can be generated, and the purpose of improving the heat exchanging performance of the radiator is achieved.

The invention relates to a circulating cooling type continuous casting crystallizer. The circulating cooling type continuous casting crystallizer comprises a crystallizer body, an outer layer housingand a cooling box, wherein bosses are arranged at the two ends of the crystallizer body; the bosses are sleeved with the outer layer housing; a closed first cooling channel is formed among the crystallizer body, the bosses and the outer layer housing; the bosses are provided with a first water inlet and a first water outlet which communicate with the first cooling channel; a second cooling channelis arranged in the outer layer housing; the two end faces of the outer layer housing are provided with a second water inlet and a second water outlet which communicate with the second cooling channel; a snakelike heat exchange pipe is arranged in the cooling box; an air blower is arranged on the side, close to a water outlet pipe, of the cooling box; and an exhaust fan is arranged on the side, close to a water inlet pipe, of the cooling box. According to the crystallizer, the two cooling channels are adopted, the heat dissipation efficiency is improved, heat dissipation is more uniform, the crystallization speed of the crystallizer is kept consistent, and the crystallization effect is guaranteed. Cooling water is recycled, water resource utilization is reduced, cost is reduced, and the system integrity and system running stability are improved.

The invention discloses an efficient aeration tank for sewage treatment. The efficient aeration tank comprises a tank body; the top of the tank body is provided with a portal frame; the inner top of the portal frame is provided with a motor, and an output shaft of the motor is connected with a rotating shaft; a plurality of supporting frames are equidistantly fixed on the inner cavity wall of thetank body in a vertical direction; and stirring parts are arranged between every two of the supporting frames. The rotating shaft drives an aeration plate to rotate in a working process of the efficient aeration tank, so that air bubbles are more uniformly distributed in the tank body, and the aeration efficiency is increased; the air bubbles can move along inclined surfaces of guide plates in anupward floating process, so that the staying time of the air bubbles in the tank body is prolonged to ensure that sewage is in more sufficient contact with the air bubbles, and the aeration efficiencyis increased; and elastically connected blades can stretch out and draw back under the actions of a centrifugal force and a water flow, so that the stirring range is continuously changed, the turbulence effect of the sewage is improved, furthermore, the sewage is sufficiently mixed with air, and the aeration efficiency is increased.

The invention provides a folded plate membrane assembly for retarding membrane pollution in a membrane bioreactor, belonging to the technical field of environment engineering. The folded plate membrane assembly comprises a hollow folded-plate-shaped organic glass framework and a filter membrane, wherein the filter membrane covers two sides of the folded-plate-shaped organic glass framework to form the folded plate membrane assembly; the folded plate membrane assembly at least has two waveforms; a plurality of water collection galleries connected with the hollow interior of the framework are arranged on the side surface of the folded-plate-shaped organic glass framework, and an annular water outlet is formed in the upper end of the folded-plate-shaped organic glass framework. By applying the folded plate membrane assembly to a membrane bioreactor process, the cross current velocity of a membrane surface-near fluid can be improved, the turbulent disturbance effect of the membrane surface-near fluid can be enhanced, the deposition of particulate matters on the membrane surface is beneficially reduced, and the membrane pollution is effectively retarded. The folded plate membrane assembly has the beneficial effects that the antifouling property of the membrane assembly can be improved without increasing the energy consumption, the service life of the membrane assembly is prolonged, the cleaning frequency of the membrane assembly is reduced, the operation cost of the membrane bioreactor process is substantially lowered, and the wide application of the membrane bioreactor is promoted.

The invention belongs to the technical field of chemical micro-reaction equipment, and particularly relates to a micro-channel reactor. According to the technical scheme, the reactor comprises a reactor shell, an upper-end flow guide base plate, an upper-end sealing cover, a lower-end flow guide base plate, a lower-end sealing cover, reaction micro-channels and a heat-conducting medium cavity, anda material inlet penetrates through the upper-end sealing cover and communicates with the multiple reaction micro-channels connected in parallel through the upper-end flow guide base plate; A material outlet penetrates through the lower-end sealing cover and then communicates with a reaction micro-channel through the lower-end flow guide base plate, and the reaction micro-channel is a linear or curved integrated columnar channel. An integrated micro-reaction tube is used as a reaction tube bundle, so that leakage of the reactor is avoided, and the service life of the micro-channel reactor isprolonged; the inner surface of the pipeline of the micro-reaction tube is roughened by adopting acid etching, coating or high temperature and other technical treatment modes, so that the specific surface area of the reactor is increased, the turbulence effect is enhanced, reaction materials are mixed more fully, and the reaction rate is increased.

The invention provides a waste liquid pool aeration tube for sewage treatment, and a sewage treatment water purifying agent. The waste liquid pool aeration tube comprises an air inlet tube, a connecting cavity, aeration tubes and a tank body. A partial area in every aeration tube is designed to achieve synchronous rotation pushing, and the rotation direction is adjustable, so the aeration dispersity is greatly improved, and the stirring aeration effect on a waste liquid pool is improved by two times or above; and the structure of every aeration tube has a good promoting effect when used for releasing the water purifying agent, so the utilization rate of the water purifying agent is increased by 30%, and the comprehensive water treatment effect is remarkably improved.